> > On Fri, 28 Nov 2003, Leopold Toetsch wrote:
> >
> > > Op vtable Meaning
> > > - is_same PMCs are ident
> > > - is_equal PMCs are equivalent, holding the same value
> > > Y cmp cmp PMCs
> > > - cmp_num cmp PMCs numerically
> > > - cmp_string cmp PMCs as strings
> > >
> > > Proposals for opcode names welcome.
> >
> > [snip]
Well, a page could be stolen from the Lisp book by defining eq/eql/equal
opcodes (though in ths case, differing from the Lisp counterparts in the
meaning of the tests) where
- eq is true if both arguments have the same value (that is, both are
numerically equal or both are equivalent strings)
- eql is true if both arguments are the same, identical object
- equal does a comparison to test if the two objects are structurally
similar (ie. in the case of a PerlArray, an element-by-element
comparrison would be performed to determine the similarity of the
structure.)
Cory
